# CVE-2021-37176: Information disclosure in Simcenter Femap V2020.2

> An attacker can leak sensitive information by tricking a user into opening a malicious modfem file in Simcenter Femap.

- **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Sep 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-62mh-7jc4-wf35

## What is CVE-2021-37176?

CVE-2021-37176 is a low-severity vulnerability in Siemens Simcenter Femap, published on 14 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All versions). The femap.exe application lacks proper validation of user-supplied data when parsing modfem files. This could result in an out of bounds read past the end of an allocated buffer. An attacker could leverage this vulnerability to leak information in the context of the current process. (ZDI-CAN-14260)

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2021-37176?

It affects 1 product.


Products: Siemens Simcenter Femap.

## How do I fix CVE-2021-37176?

No fix has been published for CVE-2021-37176 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37176 being exploited?

There is no known exploitation of CVE-2021-37176 in the wild and no public exploit code.

## Other vulnerabilities in Siemens Simcenter Femap

- [CVE-2022-28661](https://insights.sbomify.com/CVE-2022-28661/): Memory corruption in Simcenter Femap (high 8.8)
- [CVE-2024-27907](https://insights.sbomify.com/CVE-2024-27907/): Memory corruption in Simcenter Femap (high 7.8)
- [CVE-2024-24920](https://insights.sbomify.com/CVE-2024-24920/): Memory corruption in Simcenter Femap (high 7.8)
- [CVE-2024-24921](https://insights.sbomify.com/CVE-2024-24921/): Memory corruption in Simcenter Femap (high 7.8)
- [CVE-2024-24922](https://insights.sbomify.com/CVE-2024-24922/): Memory corruption in Simcenter Femap (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37176 and fix it if it is affected.

What it is: CVE-2021-37176 is a low-severity vulnerability in Siemens Simcenter Femap, published on 14 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-37176 in the wild and no public exploit code.

Affected product: Siemens Simcenter Femap. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-37176/ (Markdown: https://insights.sbomify.com/CVE-2021-37176/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37176
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37176
- OSV: https://osv.dev/vulnerability/CVE-2021-37176

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37176/
Summaries are generated and may contain mistakes; the official description above is the record.